SPDR

SPDR funds are a family of exchange-traded funds (ETFs) traded in the United States, Europe, Mexico and Asia-Pacific and managed by State Street Global Advisors (SSGA). Informally, they are also known as Spyders or Spiders. SPDR is a trademark of Standard and Poor's Financial Services LLC, a subsidiary of S&P Global. The name is an acronym for the first member of the family, the Standard & Poor's Depositary Receipts, now the SPDR S&P 500 Trust ETF, which is designed to track the S&P 500 stock market index. SPDR is the third largest ETF provider, behind iShares and Vanguard.